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Cartilage regeneration

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https://www.readbyqxmd.com/read/28088667/cell-laden-hydrogels-for-osteochondral-and-cartilage-tissue-engineering
#1
REVIEW
Jingzhou Yang, Yu Shrike Zhang, Kan Yue, Ali Khademhosseini
: Despite tremendous advances in the field of regenerative medicine, it still remains challenging to repair the osteochondral interface and full-thickness articular cartilage defects. This inefficiency largely originates from the lack of appropriate tissue engineered artificial matrices that can replace the damaged regions and promote tissue regeneration. Hydrogels are emerging as a promising class of biomaterials for both soft and hard tissue regeneration. Many critical properties of hydrogels, such as mechanical stiffness, elasticity, water content, bioactivity, and degradation, can be rationally designed and conveniently tuned by proper selection of the material and chemistry...
January 11, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28087378/new-scaffolds-encapsulating-tgf-%C3%AE-3-bmp-7-combinations-driving-strong-chondrogenic-differentiation
#2
Jose Crecente-Campo, Erea Borrajo, Anxo Vidal, Marcos Garcia-Fuentes
The regeneration of articular cartilage remains an unresolved question despite the current access to a variety of tissue scaffolds activated with growth factors relevant to this application. Further advances might result from combining more than one of these factors; here, we propose a scaffold composition optimized for the dual delivery of BMP-7 and TGF-β3, two proteins with described chondrogenic activity. First, we tested in a mesenchymal stem cell micromass culture with TGF-β3 whether the exposure to microspheres loaded with BMP-7 would improve cartilage formation...
January 10, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28066741/cell-therapy-for-cartilage-defects-of-the-hip
#3
Rodrigo Mardones, Alessio Giai Via, Claudio Jofré, José Minguell, Claudio Rodriguez, Alexander Tomic, Matias Salineros
BACKGROUND: Chondral injuries are commonly related to poor clinical outcome, but recent data showed some improvements in function and pain after hip arthroscopy. Cell-based therapies represent an appealing alternative strategy for cartilage regeneration, and interesting results have been recently reported after intra-articular injections of mesenchymal stem cells (MSCs). The results of hip arthroscopy for femoroacetabular impingement (FAI) and intra-articular injections of autologous expanded bone marrow - MSCs (BM-MSCs) are reported in this retrospective study...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28062353/indentation-across-interfaces-between-stiff-and-compliant-tissues
#4
Oliver E Armitage, Michelle L Oyen
Bone-tendon, bone-ligament and bone-cartilage junctions are multi-tissue interfaces that connect materials that differ by two orders of magnitude in mechanical properties, via gradual variations in mineral content and matrix composition. These sites mediate load transfer between highly dissimilar materials and are consequently a primary site of injury during orthopedic failure. Given the large incidence rate and the lack of suitable surgical solutions for their regeneration or repair, characterization of their natural structure and subsequent replication through tissue engineering is important...
January 3, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28060847/enhanced-chondrogenic-differentiation-of-human-umbilical-cord-wharton-s-jelly-derived-mesenchymal-stem-cells-by-gsk-3-inhibitors
#5
Prapot Tanthaisong, Sumeth Imsoonthornruksa, Apichart Ngernsoungnern, Piyada Ngernsoungnern, Mariena Ketudat-Cairns, Rangsun Parnpai
Articular cartilage is an avascular, alymphatic, and aneural system with very low regeneration potential because of its limited capacity for self-repair. Mesenchymal stem cells (MSCs) are the preferred choice for cell-based therapies. Glycogen synthase kinase 3 (GSK-3) inhibitors are compounds that can induce the Wnt signaling pathway, which is involved in chondrogenesis and cartilage development. Here, we investigated the influence of lithium chloride (LiCl) and SB216763 synergistically with TGF-β3 on chondrogenic differentiation in human mesenchymal stem cells derived from Wharton's jelly tissue (hWJ-MSCs)...
2017: PloS One
https://www.readbyqxmd.com/read/28058781/multi-photon-microscope-measurement-based-biphasic-multi-scale-analyses-of-knee-joint-articular-cartilage-and-chondrocyte-by-using-visco-anisotropic-hyperelastic-finite-element-method-and-smoothed-particle-hydrodynamics-method
#6
Eiji Nakamachi, Tomohiro Noma, Kaito Nakahara, Yoshihiro Tomita, Yusuke Morita
The articular cartilage of a knee joint has a variety of functions including dispersing stress and absorbing shock in the tissue, and lubricating the surface region of cartilage. The metabolic activity of chondrocytes under the cyclic mechanical stimulations regenerates the morphology and function of tissues. Hence, the stress evaluation of the chondrocyte is vital subject to assess the regeneration cycle in the normal walking condition, and predict the injury occurrence in the accidents. Further, the threshold determination of stress for the chondrocytes activation is valuable for development of regenerative bio-reactor of articular cartilage...
January 5, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/28058277/raman-spectroscopy-reveals-new-insights-into-the-zonal-organization-of-native-and-tissue-engineered-articular-cartilage
#7
Mads S Bergholt, Jean-Philippe St-Pierre, Giovanni S Offeddu, Paresh A Parmar, Michael B Albro, Jennifer L Puetzer, Michelle L Oyen, Molly M Stevens
Tissue architecture is intimately linked with its functions, and loss of tissue organization is often associated with pathologies. The intricate depth-dependent extracellular matrix (ECM) arrangement in articular cartilage is critical to its biomechanical functions. In this study, we developed a Raman spectroscopic imaging approach to gain new insight into the depth-dependent arrangement of native and tissue-engineered articular cartilage using bovine tissues and cells. Our results revealed previously unreported tissue complexity into at least six zones above the tidemark based on a principal component analysis and k-means clustering analysis of the distribution and orientation of the main ECM components...
December 28, 2016: ACS Central Science
https://www.readbyqxmd.com/read/28054960/evaluation-of-magnetic-nanoparticle-labeled-chondrocytes-cultivated-on-a-type-ii-collagen-chitosan-poly-lactic-co-glycolic-acid-biphasic-scaffold
#8
Juin-Yih Su, Shi-Hui Chen, Yu-Pin Chen, Wei-Chuan Chen
Chondral or osteochondral defects are still controversial problems in orthopedics. Here, chondrocytes labeled with magnetic nanoparticles were cultivated on a biphasic, type II collagen-chitosan/poly(lactic-co-glycolic acid) scaffold in an attempt to develop cultures with trackable cells exhibiting growth, differentiation, and regeneration. Rabbit chondrocytes were labeled with magnetic nanoparticles and characterized by scanning electron microscopy (SEM), transmission electron (TEM) microscopy, and gene and protein expression analyses...
January 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28042326/exosomes-derived-from-mir-140-5p-overexpressing-human-synovial-mesenchymal-stem-cells-enhance-cartilage-tissue-regeneration-and-prevent-osteoarthritis-of-the-knee-in-a-rat-model
#9
Shi-Cong Tao, Ting Yuan, Yue-Lei Zhang, Wen-Jing Yin, Shang-Chun Guo, Chang-Qing Zhang
OBJECTIVES: Osteoarthritis (OA) is the most common joint disease throughout the world. Exosomes derived from miR-140-5p-overexpressing synovial mesenchymal stem cells (SMSC-140s) may be effective in treating OA. We hypothesized that exosomes derived from SMSC-140 (SMSC-140-Exos) would enhance the proliferation and migration abilities of articular chondrocytes (ACs) without harming extracellular matrix (ECM) secretion. METHODS: SMSCs were transfected with or without miR-140-5p...
2017: Theranostics
https://www.readbyqxmd.com/read/28040083/a-novel-aragonite-based-scaffold-for-osteochondral-regeneration-early-experience-on-human-implants-and-technical-developments
#10
Elizaveta Kon, Dror Robinson, Peter Verdonk, Matej Drobnic, Jenel Mariano Patrascu, Oliver Dulic, Gordon Gavrilovic, Giuseppe Filardo
INTRODUCTION: Chondral and osteochondral lesions represent a debilitating disease. Untreated lesions remain a risk factor for more extensive joint damage. The objective of this clinical study is to evaluate safety and early results of an aragonite-based scaffold used for osteochondral unit repair, by analysing both clinical outcome and MRI results, as well as the benefits of the procedure optimization through novel tapered shaped implants. METHODS: A crystalline aragonite bi-phasic scaffold was implanted in patients affected by focal chondral-osteochondral knee lesions of the condyle and trochlea...
December 2016: Injury
https://www.readbyqxmd.com/read/28019053/prestructural-cartilage-assessment-using-mri
#11
Thomas M Link, Jan Neumann, Xiaojuan Li
: Cartilage loss is irreversible, and to date, no effective pharmacotherapies are available to protect or regenerate cartilage. Quantitative prestructural/compositional MR imaging techniques have been developed to characterize the cartilage matrix quality at a stage where abnormal findings are early and potentially reversible, allowing intervention to halt disease progression. The goal of this article is to critically review currently available technologies, present the basic concept behind these techniques, but also to investigate their suitability as imaging biomarkers including their validity, reproducibility, risk prediction and monitoring of therapy...
December 26, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28017598/biodegradable-poly-%C3%AE%C2%B5-caprolactone-microcarriers-for-efficient-production-of-human-mesenchymal-stromal-cells-and-secreted-cytokines-in-batch-and-fed-batch-bioreactors
#12
Alan Tin-Lun Lam, Jian Li, Jessica Pei-Wen Toh, Eileen Jia-Hui Sim, Allen Kuan-Liang Chen, Jerry Kok-Yen Chan, Mahesh Choolani, Shaul Reuveny, William R Birch, Steve Kah-Weng Oh
Large numbers of human mesenchymal stromal cells (MSCs) used for a variety of applications in tissue engineering and cell therapy can be generated by scalable expansion in a bioreactor using microcarriers (MCs) systems. However, the enzymatic digestion process needed to detach cells from the growth surface can affect cell viability and potentially the potency and differentiation efficiency. Thus, the main aim of our study was to develop biocompatible and biodegradable MCs that can support high MSC yields while maintaining their differentiation capability and potency...
December 22, 2016: Cytotherapy
https://www.readbyqxmd.com/read/28007307/human-based-biological-and-biomimetic-autologous-therapies-for-musculoskeletal-tissue-regeneration
#13
REVIEW
Sabino Padilla, Mikel Sánchez, Gorka Orive, Eduardo Anitua
Repairing and regenerating damaged musculoskeletal tissues is one of the greatest challenges in regenerative medicine. Blood contains the essential ingredients to biologically engineer drug delivery devices that provide spatiotemporal control over the availability of a wide range of autologous agents, including small molecules, cytokines, and growth factors. This opinion article summarizes our current knowledge of blood-derived biological drug delivery therapies. The potential mechanisms that control protein release are discussed, along with the biological rationale and effects of their use in different relevant musculoskeletal tissues, including articular cartilage, bone, tendon, muscle, and nerve tissue injuries...
December 19, 2016: Trends in Biotechnology
https://www.readbyqxmd.com/read/28005380/hyaluronic-acid-hydroxyapatite-colloidal-gels-combined-with-micronized-native-ecm-as-potential-bone-defect-fillers
#14
S Connor Dennis, Jonathan Whitlow, Michael S Detamore, Sarah L Kieweg, Cory J Berkland
One of the grand challenges in translational regenerative medicine is the surgical placement of biomaterials. For bone regeneration in particular, malleable and injectable colloidal gelsare frequently designed to exhibit self-assembling and shear-response behavior which facilitates biomaterial placement in tissue defects. The current study demonstrated that by combining native extracellular matrix (ECM) microparticles, i.e., demineralized bone matrix (DBM) and decellularized cartilage (DCC), with hyaluronic acid (HA) and hydroxyapatite (HAP) nanoparticles, a viscoelastic colloidal gel consisting exclusively of natural materials was achieved...
December 22, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28004813/electrical-stimulation-drives-chondrogenesis-of-mesenchymal-stem-cells-in-the-absence-of-exogenous-growth-factors
#15
Hyuck Joon Kwon, Gyu Seok Lee, Honggu Chun
Electrical stimulation (ES) is known to guide the development and regeneration of many tissues. However, although preclinical and clinical studies have demonstrated superior effects of ES on cartilage repair, the effects of ES on chondrogenesis remain elusive. Since mesenchyme stem cells (MSCs) have high therapeutic potential for cartilage regeneration, we investigated the actions of ES during chondrogenesis of MSCs. Herein, we demonstrate for the first time that ES enhances expression levels of chondrogenic markers, such as type II collagen, aggrecan, and Sox9, and decreases type I collagen levels, thereby inducing differentiation of MSCs into hyaline chondrogenic cells without the addition of exogenous growth factors...
December 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28002904/the-meniscus-vascularization-the-direct-correlation-with-tissue-composition-for-tissue-engineering-purposes
#16
A Di Giancamillo, L Mangiavini, I Tessaro, A Marmotti, R Scurati, G M Peretti
Meniscal lesions still represent an unsolved problem in clinical practice. Like the articular cartilage, meniscus has a scarce healing potential. Thus, when this tissue is damaged, the joint biomechanics is completely altered, leading to the development and progression of premature osteoarthritis. Therefore, in the last years, several tissue-engineering strategies have been developed to regenerate the meniscus with debated results. The comprehension of complex processes underlying meniscus maturation and structure is essential for a correct approach for the generation of a biomimetic meniscal substitute...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/27998214/fabrication-of-a-highly-aligned-neural-scaffold-via-a-table-top-stereolithography-3d-printing-and-electrospinning
#17
Se-Jun Lee, Margaret Nowicki, Brent Harris, Lijie Grace Zhang
3D bioprinting is a rapidly emerging technique in the field of tissue engineering to fabricate extremely intricate and complex biomimetic scaffolds in the range of micrometers. Such customized 3D printed constructs can be used for the regeneration of complex tissues such as cartilage, vessels and nerves. However, the 3D printing techniques often offer limited control over the resolution and compromised mechanical properties due to short selection of printable inks. To address these limitation, we combined stereolithography and electrospinning techniques to fabricate a novel 3D biomimetic neural scaffold with a tunable porous structure and embedded aligned fibers...
December 21, 2016: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/27995334/strategies-on-process-engineering-of-chondrocyte-culture-for-cartilage-tissue-regeneration
#18
Sarada Prasanna Mallick, Amit Rastogi, Satyavrat Tripathi, Pradeep Srivastava
The current work is an attempt to study the strategies for cartilage tissue regeneration using porous scaffold in wavy walled airlift bioreactor (ALBR). Novel chitosan, poly (L-lactide) and hyaluronic acid based composite scaffold were prepared. The scaffolds were cross-linked with 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide, N-hydroxysuccinimide and chondroitin sulfate to obtain interconnected 3D microstructure showing excellent biocompatibility, higher cellular differentiation and increased stability. The surface morphology and porosity of the scaffolds were analyzed using scanning electron microscopy (SEM) and mercury intrusion porosimeter and optimized for chondrocyte regeneration...
December 19, 2016: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/27990446/the-superior-regenerative-potential-of-muscle-derived-stem-cells-for-articular-cartilage-repair-is-attributed-to-high-cell-survival-and-chondrogenic-potential
#19
Hongshuai Li, Aiping Lu, Ying Tang, Sarah Beckman, Naoki Nakayama, Minakshi Poddar, MaCalus V Hogan, Johnny Huard
Three populations of muscle-derived cells (PP1, PP3, and PP6) were isolated from mouse skeletal muscle using modified preplate technique and retrovirally transduced with BMP4/GFP.  In vitro, the PP1 cells (fibroblasts) proliferated significantly slower than the PP3 (myoblasts) and PP6 cells (muscle-derived stem cells); the PP1 and PP6 cells showed a superior rate of survival compared with PP3 cells under oxidative stress; and the PP6 cells showed significantly superior chondrogenic capabilities than PP1 and PP3 cells...
2016: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/27987834/injectable-hydrogels-prepared-from-partially-oxidized-hyaluronate-and-glycol-chitosan-for-chondrocyte-encapsulation
#20
Do Yoon Kim, Honghyun Park, Sang Woo Kim, Jae Won Lee, Kuen Yong Lee
Hyaluronate has attracted great attention in tissue engineering as a scaffolding material. However, hyaluronate typically requires chemical cross-linking molecules to form hydrogels, which may induce undesirable side effects in the body. In this study, hyaluronate was partially oxidized with sodium periodate to generate aldehyde groups in the backbone, and simply mixed with glycol chitosan to form gels via Schiff base formation. The effects of the degree of oxidization, polymer concentration, and polymer composition on the mechanical properties of oxidized hyaluronate/glycol chitosan hydrogels were investigated in vitro...
February 10, 2017: Carbohydrate Polymers
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